Moons in close binary solar systems may harbour life : Study

Washington: Move over exoplanets, exomoons may also harbour life! Scientists after a new study have found that Moons in close binary solar systems have a better possibilities of hosting life than those in single-star systems.

Binary stars dampen each other's solar radiation and stellar winds, thereby creating a more hospitable environment for life and increasing the habitable zone around such solar systems, researchers said.

"The two stars calm each other down in terms of activity," Paul Mason, an astrophysicist at the University of Texas at El Paso told Astrobiology Magazine.

The study used data collected by NASA's Kepler spacecraft mission to discover potentially habitable exoplanets in our region of the Milky Way galaxy.

Simply adding a sun-like star to the mix improves the chances for life.

"Solar-type stars with companions work really well. They work better than our own solar-type star without a companion," Mason said.

Although more than a thousand planets have been found outside of our solar system, as well as a host of candidates waiting for follow-up observations, no moons have yet been confirmed, said researchers.

The study was presented at the 223rd American Astronomical Society meeting in January.